☀ Helios Solar Watch · 2026-09-30 16:00 UTC
QUIET
Current solar conditions are quiet, with a stable planetary K-index of 1.0. Solar activity remains moderate, characterized by low-level flare production and standard background X-ray flux.
Visible light · 2 active regions
Extreme UV · 304 Å
Kp Index
1.0
5 or above = storm
Geomagnetic
G0
24 h max: G0
X-Ray
A/B
quiet
⚠ Electron flux F3 reached · 4 more below
Next 24 h
Geomagnetic conditions are expected to remain quiet over the next 24 hours, with the Kp-index projected to stay below 2.0.
more
C-class flare activity is possible given the presence of active regions, but significant space weather events are not anticipated.
🌌 Aurora
Aurora activity is limited to high-latitude regions near the poles.
more
No significant displays are expected at mid-latitudes during this period.
👁 Watch for
Monitor the evolution of active region AR4535 as it continues its rotation toward the western limb for any signs of sudden magnetic complexity.
▸ Detailed readings
Radio blackout
R0
(24 h max R0)
R0
(24 h max R0)
Radiation
S0
(24 h max S0)
S0
(24 h max S0)
F10.7
126.0
sfu
126.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4535 | N11W57 | Dao/BG | 1/0/0 |
| AR4544 | S09W29 | Dro/B | 0/0/0 |
NOAA messages
2026-09-30 10:04 Electron flux F3 reached (ALTEF3)
2026-09-30 03:39 ALTTP4 (ALTTP4)
2026-09-30 03:38 ALTTP2 (ALTTP2)
2026-09-29 13:01 Kp 20 possible (WATA20)
2026-09-27 00:40 Kp 4 reached (ALTK04)
Helios Observer · Data: NOAA SWPC · updated every 12 h